The Association of Counsellors says fees introduced for the Family Court will hurt the most vulnerable families and could increase family violence.
From next month, a couple will have to pay $220 for the court to help settle arguments about child care arrangements.
Disagreements about dividing up assets will cost $700 to lodge and $906 for each half day hearing.
The services were previously free.
Association president Jonathon Loan says the new fees will hit at-risk families particularly hard.
He says pricing them out of the Family Court service denies them their fundamental right to have access to justice.
